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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 732443Generated: November 1, 2026

Hydrochloric Acid → 2-Cyclopropylamino-6-(methanesulfonyl-methylamino)-isonicotinic acid

https://huagongshe.com/reaction/732443

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
Reactant2-Cyclopropylamino-6-(methanesulfonyl-methylamino)-isonicotinic acid methylesterHCID 68818381—
SolventMethanolHCID 887—
Product2-Cyclopropylamino-6-(methanesulfonyl-methylamino)-isonicotinic acidHCID 6881454591%

Reaction Steps

Treat a solution of 2-cyclopropylamino-6-(methanesulfonyl-methylamino)-isonicotinic acid methyl ester (261 mg, 0.87 mmol) in methanol (8 mL) with 1 N NaOH (1.3 mL, 1.31 mmol) at room temperature. Stir for 5 h, acidify with 1 N HCl to about pH=3. Extract the reaction mixture with ethyl acetate, dry (sodium sulfate) and concentrate to give the title compound (226 mg, 91%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07585885B2
Source datasetuspto-grants-2009_09
ORD IDord-4ada9f5107f5473f81b961757d309c23
Source noteuspto-grants-2009_09